We hear it everyday. It's called The News.
Lots of humans fucking over other humans. Some of these humans are actually killed—that's it for them! Always sorry about that, can't be helped. Sometimes these unfortunate victims are just wounded or jailed or screwed over in some more subtle way (e.g. economically). There are lots of variations on this theme in the Human World.
There were a lot of human fuck-ups today! That's true everyday. Never ends.
Homo sapiens is an animal species, essentially like any other, so what you see is what you get. Enlightenment is not just around the corner.
When we listen to The News, we get the same tragic story over and over and over again, everyday, all day long, for our entire lifetimes.
Gets old, doesn't it?